Over the past decade, many companies worldwide have embraced virtualization. Yet despite overwhelming evidence that moving workloads from physical servers to a virtualized environment drives down costs, increases IT efficiencies,and improves application availability, skeptics remain. Some say implementing virtualization poses too much risk to service-level agreements (SLAs). Others claim it is too costly and time-consuming. The following information brief explores some of the most commonly expressed concerns about virtualization - to help you distinguish fact from fiction.